Skip to main content
Solve for x
Tick mark Image
Graph

Similar Problems from Web Search

Share

\left(x+7\right)\left(x+1\right)=\left(x-5\right)\left(x+9\right)
Variable x cannot be equal to any of the values -7,5 since division by zero is not defined. Multiply both sides of the equation by \left(x-5\right)\left(x+7\right), the least common multiple of x-5,x+7.
x^{2}+8x+7=\left(x-5\right)\left(x+9\right)
Use the distributive property to multiply x+7 by x+1 and combine like terms.
x^{2}+8x+7=x^{2}+4x-45
Use the distributive property to multiply x-5 by x+9 and combine like terms.
x^{2}+8x+7-x^{2}=4x-45
Subtract x^{2} from both sides.
8x+7=4x-45
Combine x^{2} and -x^{2} to get 0.
8x+7-4x=-45
Subtract 4x from both sides.
4x+7=-45
Combine 8x and -4x to get 4x.
4x=-45-7
Subtract 7 from both sides.
4x=-52
Subtract 7 from -45 to get -52.
x=\frac{-52}{4}
Divide both sides by 4.
x=-13
Divide -52 by 4 to get -13.